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The Delian League

Misha Glenny and guests discuss how Athens led an ancient league of allies which gradually seemed to transform from a cooperative alliance to an imperial power.

Misha Glenny and guests discuss the origins and evolution of an alliance which transformed the geopolitics of the classical world: the Delian League. Since the start of the 5th Century BCE, city states across Greece had been fighting a series of armed conflicts in the Greco-Persian Wars. After the defeat of a second Persian invasion in 478 BCE, a league of cities across Greece came together and formed a new alliance led by Athens. That alliance is now known as the Delian League, after the island of Delos where it was established. In the following decades, Athens used the Delian League to grow its own wealth and formidable naval power. But cities who tried to leave the alliance found themselves violently put down and their lands confiscated by the Athenians. What had begun as a cooperative alliance sworn to resist the Persian Empire gradually started to seem like it may have created another imperial power: the Athenian Empire.

With

Leah Lazar
Lecturer in Hellenistic Culture at the University of Manchester

Polly Low
Professor in the Department of Classics and Ancient History at the University of Durham

And

Paul Cartledge
AG Leventis Senior Research Fellow of Clare College, University of Cambridge

Producer: Martha Owen

In Our Time is a BBC Studios production

Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.

Release date:

42 minutes

On radio

Next Thursday 09:00

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  • Next Thursday 09:00
  • Sun 21 Jun 2026 23:00

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